Home / 36,021.36-49,709.52-20,105.80

Finding the Fourth Proportional to 36,021.36, 49,709.52 and 20,105.80

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Solution

The fourth proportional to 36,021.36, 49,709.52 and 20,105.80 is: 27,746.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,021.36 : 49,709.52 = 20,105.80 : x
  2. Step 2: Convert to fraction form
    36,021.36/49,709.52 = 20,105.80/x
  3. Step 3: Cross multiply
    36,021.36x = 49,709.52 × 20,105.80
  4. Step 4: Simplify right side
    36,021.36x = 999,449,667.22
  5. Step 5: Solve for x
    x = 999,449,667.22/36,021.36
  6. Step 6: Final answer
    x = 27,746.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.